India Post — speed post article not delivered on time

I have very important document which i need on urgent basis. Item was send on time through speed post but i haven't received it since last 20 days. My tracking id is :ei[protected]in, i have made complain after 10 days but still no action taken on the complain. After so many follow up with the destination speed post office (Chinchawad so pune), no update i got. My complain number is [protected]. Even online tracking on the consignment is not updated. They have updated "item delivery attempted door locked-intimation served", even they don't no my address. Item does not come under the chinchwad so region, so how they can change the status like attempted.